Year	current US$
1960	78910000
1961	81210000
1962	77730000
1963	82170000
1964	93240000
1965	95490000
1966	106930000
1967	109530000
1968	119410000
1969	143520000
1970	158380000
1971	154610000
1972	172690000
1973	237350000
1974	356360000
1975	371760000
1976	421830000
1977	511420000
1978	571960000
1979	753670000
1980	940040000
1981	860470000
1982	789190000
1983	732540000
1984	716390000
1985	756330000
1986	885160000
1987	1137670000
1988	1349570000
1989	1477740203
1990	1951371798
1991	2113472730
1992	2344667169
1993	2173309358
1994	2440914353
1995	2942406244
1996	2805377311
1997	2552916563
1998	3722581084
1999	2845830430
2000	3396921715
2001	2530604394
2002	2646798936
2003	3227980913
2004	3642191751
2005	3710618064
2006	4306790697
2007	4810449898
2008	5324693834
2009	4476219321
2010	5054656957
2011	6289941682
2012	6583989102
2013	6135738588
2014	6797613709
2015	6036001024
2016	6444106096
2017	5997442509
2018	6768644879
2019	7388169834
2020	5223211735